CN102997344B - Device for Improving Pulsation Performance of Supply Air Flow - Google Patents

Abstract

The present invention relates to a kind of device improving air-supply gas performance, including air-conditioner housing, there is on air-conditioner housing air inlet and air outlet, the movable shutters mechanism of regulation wind direction it is provided with at air outlet, also include at least one diagonal flow fan, described diagonal flow fan is included in air-conditioner wind and blows down revolvable impeller and rotating shaft, and described impeller is arranged on the air outlet region of air-conditioner housing by rotating shaft.The apparatus structure improving air-supply gas performance of the present invention is simple, it is easy to manufactures, can increase the pulsation performance of air-conditioning air-flow, strengthens the turbulence intensity of room air, the Thermal comfort of personnel in raising air-conditioned room.

Description

Device for Improving Pulsation Performance of Supply Air Flow

technical field

The invention relates to the technical field of air conditioning and ventilation equipment, in particular to a device for improving the pulsation performance of air supply airflow.

Background technique

People spend 80%-90% of their time in various closed indoor environments. The turbulent intensity of indoor air and the design of airflow organization will have a certain impact on the human body's sense of blowing and thermal comfort. Indoor air-conditioning outlets in conventional small-space buildings are adjustable louvers or slits. Although this type of air supply port can change the flow direction of the airflow by adjusting the angle of the louvers as required, the airflow direction generated is single and the flow velocity is uniform. If you stay in this air-conditioned environment for a long time, the human body will experience a blowing sensation, and the thermal comfort of the human body is relatively poor.

Contents of the invention

The technical problem to be solved by the present invention is: to overcome the single airflow direction and uniform flow velocity generated by the air conditioner in the prior art, which will cause a blowing sensation in the human body and poor thermal comfort of the human body, and provide a method for improving the pulsation performance of the air supply airflow The device can increase the pulsation performance of the air-conditioning air supply airflow, enhance the turbulence intensity of the indoor air, and improve the thermal comfort of the people in the air-conditioning room.

The technical solution adopted by the present invention to solve the technical problem is: a device for improving the pulsation performance of the air supply airflow, including an air conditioner housing with an air inlet and an air outlet on the air outlet, and movable louvers for adjusting the wind direction at the air outlet The mechanism also includes at least one diagonal flow fan, and the diagonal flow fan includes an impeller that can rotate under the air-conditioning wind and a rotating shaft matched with the impeller, and the impeller is installed in the air outlet area of the air-conditioning housing through the rotating shaft. The oblique flow fan rotates under the action of air-conditioning wind. Driven by the rotation of the oblique flow fan, the flow direction of part of the air deviates from the original flow direction, and the size of the airflow also changes to a certain extent; while the airflow flowing out from other areas has a constant size, The same direction. The two airflows are mixed with each other and have an effect, which increases the disorder (direction and size) of the airflow in the local area of the entire air supply port, increases the pulsation of the air supply airflow and the turbulent intensity of the indoor airflow, thereby greatly reducing the local airflow of the human body. Possibility to create a blowing sensation, improving the thermal or cooling comfort of the occupants of the air-conditioned room.

Further, in order to securely install the oblique flow fan, the oblique flow fan also has a fan casing covering the impeller, the fan casing is disc-shaped, and the fan casing includes a cylindrical wall with a diameter greater than that of the impeller and the bottom on one side of the cylindrical wall, the rotating shaft is fixedly installed at the center of the bottom of the disc-shaped fan housing, and the outer wall of the disc-shaped fan housing is connected to the air-conditioning housing through a connecting piece.

The movable louver mechanism at the air outlet includes at least one group of movable louvers and linkages to realize the linkage of the movable louvers in the same group. Both ends of the movable louvers are hinged on the air conditioner casing, and the linkages pass Set in the middle or end of the movable louver. The movable louver mechanism can adjust the wind direction up and down and/or left and right, which is more suitable for use.

To further make the structure reasonable, the movable louver mechanism includes two groups of movable louvers, respectively a horizontal louver group and a vertical louver group, the horizontal louver group and the vertical louver group are arranged perpendicular to each other, and the horizontal louver group is installed on On the outside, the vertical louvers are installed on the inside of the air conditioner housing.

Specifically, the outer side of the disc-shaped fan housing is substantially flush with the transverse louvers, and the two ends of the transverse louvers located on both sides of the disc-shaped fan housing are respectively hinged to the disc-shaped fan housing and the air conditioner housing.

The beneficial effect of the present invention is that the device for improving the pulsation performance of the air supply airflow of the present invention has a simple structure and is easy to manufacture, which can increase the pulsation performance of the air supply airflow of the air conditioner, enhance the turbulence intensity of the indoor air, and improve the thermal comfort of the personnel in the air-conditioning room .

Using the principles of aerodynamics and fluid mechanics, several diagonal flow fans are installed as needed in the original air supply outlet area of conventional air conditioners. When the air conditioner is started, the indoor air first enters the indoor unit through the air inlet of the air conditioner indoor unit, and undergoes heat and humidity treatment with the heat exchange coil, and the excess heat and humidity are discharged from the room; part of the treated air passes through the diagonal flow fan. The area is sent into the room, and the rest of the air enters the room through the air outlet in the form of grille or louvers. The oblique flow fan rotates under the action of the air supply air flow, and part of the air flow is driven by the rotation of the oblique flow fan, and the flow direction deviates from the original direction. The flow direction and size have also changed to a certain extent; while the airflow flowing out of other areas has a constant size and the same direction. The two airflows are mixed with each other and have an effect, which increases the disorder (direction and size) of the airflow in the local area of the entire air supply port, increases the pulsation of the air supply airflow and the turbulent intensity of the indoor airflow, thereby greatly reducing the local airflow of the human body. Possibility of creating a blowing sensation, improving the thermal comfort of the occupants in air-conditioned rooms.

Description of drawings

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

Fig. 1 is a working principle diagram of a wall-mounted air conditioner indoor unit in the prior art;

Fig. 2 is a working principle diagram of a cabinet-type air conditioner indoor unit in the prior art;

Fig. 3 is the front view of the air outlet of the device for improving the pulsation performance of the air supply airflow of the present invention;

Fig. 4 is a sectional view of A-A in Fig. 3 .

In the figure: 1. Air conditioner shell, 11. Air inlet, 12. Cross-flow fan, 13. Heat exchange coil, 14. Air outlet, 2. Movable louver mechanism, 3. Diagonal flow fan, 31. Impeller, 32. Rotating shaft, 33. fan casing.

detailed description

The present invention is described in further detail now in conjunction with accompanying drawing. These drawings are all simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, so they only show the configurations related to the present invention.

As shown in Figures 1 and 2, the working principle diagrams of the wall-mounted air conditioner indoor unit and the cabinet type air conditioner indoor unit in the prior art, the indoor air first enters the cavity of the indoor unit through the air inlet 11 on the upper part of the air conditioner housing 1, and then Under the action of the cross-flow fan 12, after heat and humidity treatment with the heat exchange coil 13, the excess heat and humidity are discharged from the room, and the treated air enters the room through the air outlet 14 below to adjust the indoor air temperature. humidity.

The best embodiment of the device for improving the pulsation performance of the air supply air flow of the present invention as shown in Figures 3 to 4 includes an air-conditioning housing 1, which has an air inlet 11 and an air outlet 14, and the air outlet 14 is provided with There is a movable louver mechanism 2 for adjusting the wind direction, and also includes at least one diagonal flow fan 3. The diagonal flow fan 3 includes an impeller 31 that can rotate under the air-conditioning wind and a rotating shaft 32 that cooperates with the impeller 31. The impeller 31 is installed on the The area of the air outlet 14 of the air conditioner housing 1 .

Further, in order to securely install the oblique flow fan, the oblique flow fan 3 also has a fan casing 33 that is arranged on the impeller 31. The fan casing 33 is disc-shaped, includes a cylindrical wall with a diameter greater than that of the impeller and is located in the cylinder. At the bottom of one side of the wall, the rotating shaft is fixedly installed at the center of the bottom of the disc-shaped fan housing 33, and the outer wall of the disc-shaped fan housing 33 is connected with the air-conditioning housing 1 through a connecting piece. The connecting piece can be a support or a suspender, and one end of the connecting piece is connected to the fan casing, and the other end is connected to the air conditioner housing 1 to play a role of supporting and fixing.

The movable louver mechanism 2 at the air outlet includes at least one group of movable louvers and linkages to realize the linkage of the movable louvers in the same group. department. The movable louver mechanism 2 includes two groups of movable louvers, namely a horizontal louver group and a vertical louver group. The horizontal louver group and the vertical louver group are arranged perpendicular to each other. Inside the air conditioner housing 1. The outer side of the disc-shaped fan housing 33 is substantially flush with the transverse louvers, and the two ends of the transverse louvers located on both sides of the disc-shaped fan housing 33 are hinged to the disc-shaped fan housing 33 and the air-conditioning housing 1 respectively. The movable louver mechanism can adjust the wind direction up and down, left and right, and cooperate with the diagonal flow fan to improve thermal comfort.

Introduce the present invention in conjunction with specific use below, the diagonal flow fan 3 is arranged on the air outlet 14 of the air conditioner housing 1, one large or two medium-sized diagonal flow fans 3 can be installed on the cabinet air conditioner, and several small ones can be installed on the wall-mounted air conditioner. The oblique flow fan 3, the indoor air first enters the cavity of the indoor unit through the air inlet 11 on the upper part of the air conditioner housing 1, and under the action of the cross flow fan 12, after heat and humidity treatment with the heat exchange coil 13, the excess The heat and humidity are discharged from the room, and the treated air enters the room after passing through the lower air outlet 14 and the diagonal flow fan 3. The diagonal flow fan rotates under the action of the air supply air flow, and part of the air flow is driven by the rotation of the diagonal flow fan , the flow direction deviates from the original flow direction, and the size has also changed to a certain extent, which has the effect of improving the thermal comfort of the human body.

Inspired by the above-mentioned ideal embodiment according to the present invention, through the above-mentioned description content, relevant workers can make various changes and modifications within the scope of not departing from the technical idea of the present invention. The technical scope of the present invention is not limited to the content in the specification, but must be determined according to the scope of the claims.

Claims (4)

1. A device for improving the pulsation performance of the air supply airflow, comprising an air-conditioning housing (1), the air-conditioning housing (1) has an air inlet (11) and an air outlet (14), and the air outlet (14) is provided with an adjustment The movable louver mechanism (2) in the wind direction is characterized in that it also includes at least one oblique flow fan (3), and the oblique flow fan (3) includes an impeller (31) that can rotate under the air-conditioning wind and is connected with the impeller (31) A matching rotating shaft (32), the impeller (31) is installed in the area of the air outlet (14) of the air conditioner casing (1) through the rotating shaft (32), and the diagonal flow fan (3) also has a cover The fan casing (33) arranged on the impeller (31), the fan casing (33) is disc-shaped, the fan casing (33) includes a cylindrical wall with a diameter larger than that of the impeller and a bottom on one side of the cylindrical wall , the rotating shaft (32) is fixedly installed at the bottom center of the disc-shaped fan housing (33), and the outer wall of the disc-shaped fan housing (33) is connected to the air-conditioning housing (1) through a connecting piece. 2. The device for improving the pulsation performance of the air supply airflow according to claim 1, characterized in that: the movable louver mechanism (2) at the air outlet (14) includes at least one group of movable louvers and realizes The linkage of movable louvers, the two ends of the movable louvers are hinged on the air conditioner housing (1), and the linkage is installed in the middle or end of the movable louvers. 3. The device for improving the pulsation performance of the air supply airflow according to claim 2, characterized in that: the movable louver mechanism (2) includes two groups of movable louvers, respectively a horizontal louver group and a vertical louver group, and the horizontal louver group The vertical louver group and the vertical louver group are arranged vertically to each other, the horizontal louver group is installed on the outside of the air conditioner casing (1), and the vertical louver group is installed on the inside of the air conditioner casing (1). 4. As claimed in claim 3 The device for improving the pulsation performance of the air supply airflow is characterized in that: the outer side of the disc-shaped fan housing (33) is approximately flush with the transverse louver group, and is located on the lateral sides of the disc-shaped fan housing (33). Both ends of the louver group are respectively hinged with the disc-shaped fan housing (33) and the air conditioner housing (1).